Abstract
The KL→ π0π0e+e- decay in the KTeV experiment was analyzed. The KTeV spectrometer components used for the analysis consisted of four stations of drift chambers. In 2.7 × 1011 KL decays, one event was observed with an expected background of 0.3 event, resulting in an upper limit for the KL→ π0π0e+e- branching ratio of 6.6 × 10-9 at the 90%CL.
Original language | English (US) |
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Article number | 211801 |
Pages (from-to) | 2118011-2118014 |
Number of pages | 4 |
Journal | Physical review letters |
Volume | 89 |
Issue number | 21 |
State | Published - Nov 18 2002 |
ASJC Scopus subject areas
- General Physics and Astronomy